Supporting of casements



June 28, 1949.

J. R. CORNELIUS SUPPORTING OF CASEMENTS Filed April 2, 1945 Patented June 28, 1949 UNITED STATES FATENT OFFICE SUPPORTING F CASEMENTS James Richard Cornelius, Coventry, England Application April 2, 1945, Serial No. 586,185 In Great Britain July 22, 1944 6 Claims.

This invention relates to a casement frame, i. e., a movable window frame which is pivotally supported from a stationary frame round a Window opening.

The main object of the invention is to provide a simple and inexpensive construction with which the casement can be clamped in a number of different open positions, selectable dependently upon the direction of the Wind or rain to give different results, and with which the cleaning of both sides of the casement will be facilitated.

According to the invention, the easement frame (for example, of wood, rolled section metal, or cast metal) is supported (for example, along or near a centre line) at opposite points by parallel links hinged upon the stationary frame, and there are means for clamping at least one of the links with respect both to the stationary frame and to the casement frame.

For a relatively-large casement the links are preferably movable about vertical axes, i. e., connected to the top and bottom of the casement frame, whilst for smaller easements (for example, upper easements when a window has both upper and lower easements) they may be ar- 1 ranged to be movable about horizontal axes, i. e., connected to the sides of the frame. The links, of course, swing out in either case as the casement is opened.

The invention is illustrated, somewhat diagrammatically, in the accompanying drawings as applied to a relatively-large casement supported at its upper and lower edges. Only the lower supporting link is shown, and it will be understood that the upper supporting link will be substantially identical therewith, preferably also being fitted with similar clamping means.

In the drawings:

Figure 1 is a fragmentary sectional plan, showing the lower supporting means in plan, of the casement in one open position, the upper supporting means being identical;

Figure 2 is a fragmentary elevation thereof, taken from inside the window opening, with the casement closed; and

Figures 3 and 4 are fragmentary views, similar to that of Figure l but to a smaller scale, showing two further positions which the casement may take when not closed.

In the drawings, l2 represents the stationary frame, I3 being its inside face, and, although it is shown as being formed of wood, obviously it may be formed of other material. It represents the casement frame, and here again, although this is shown as being formed of wood, it may be of other material. Along three edges the casement frame is provided with a step or flange. l5 which in the closed position fits the rebate l6 of the stationary frame, whilst the fourth edge I! of the casement frame is rounded to fit a corresponding longitudinal groove l8 provided in the adjacent side of the stationary frame.

In the arrangement shown, the lower supporting means for the casement essentially comprises a pair of similar side-by-side links 20, 2| which are spaced slightly from one another. At one end they are pivoted upon the stationary frame as by means of a pin 22, and at the other end they are pivoted upon the casement frame as by a pin 23.

From a consideration of Figures 1, 3 and 4 it will be evident that if the links 2!] and 21 are clamped relatively to the stationary frame (the corresponding parallel links at the upper edge of the Window opening being similarly clamped) when the easement is not closed, the latter can turn about the pivot pin 23 in either direction. Alternatively, if the easement be clamped relatively to the supporting links 20, 2| (the upper edge of the easement being clamped in a similar manner) when not closed, then the casement and the supporting links can be moved as a Whole about the axis of the pivot 22. Obviously, both these movements may take place simultaneously, if desired.

The clamping means illustrated includes a slotted link 25 pivotally mounted at 26 upon the stationary frame and having its slot 21 engaged by a clamping device 28for example, a knurled nut on the stem of a bolt-which is carried by the links and 2|, the link extending between these supporting links. In addition, a link 29 is pivotally mounted at 30 upon the casement frame to extend between the supporting links 20, 2|, and it has a slot 3| engaged by another clamping device 32 supported by the links 20, 2i.

With this construction it will be observed that at a maximum four clamping devices, namely, two. 'at the top (if provided) and two at the bottom, have to be released, when the casement is to be moved, and tightened again when the casement is to be held stationary in another position, and there is a wide variety of choice as to the position to be adopted by the casement-- as indicated by Figures 1, 3 and 4. The step 15 and the coacting rebate 16 will prevent the easement from extending through the window opening and will assist in providing a good seal when the casement is closed.

What I claim as my invention and desire to secure by Letters Patent of the United States is:

1. For a window, a stationary frame, a casement frame, parallel supporting means respectively connected to the upper and lower edges of the inside face of the easement frame near a centre line thereof and connected to the stationary frame near one of the upright edges thereof, each of said supporting means comprising a pair of side-by-side links spaced slightly from one another, two releasable clamps carried in spaced relation by one of said pairs of links, and other links pivoted upon said frames, respectively, and engaged with said clamping means, respectively, said other links extending through the space of said one pair of links, the edge of said casement frame, remote from where said supporting means are hinged to said stationary frame, being convex in.

cross-section, and the coacting edge of said stationary frame being correspondingly concave to receive said convex edge and provide therewith a good seal.

2. For a window, a stationary frame, a casement frame, parallel supporting means respec tively connected to the upper and lower edges of the inside face of the casement frame near a centre line thereof and connected to the stationary frame near one of the upright edges thereof, each of said supporting means comprising a pair of side-by-side links spaced slightly from one another, two releasable clamps carried in spaced relation by one of said pairs of links, other links pivoted upon said frames, respectively, and engaged with said clamping means, respectively, said other links extending through the space of said one pair of links, the stationary frame having a concave groove along the other of its upright edges and the casement frame having a corresponding round edge to fit thereinto when the casement is closed.

3. For a window, a stationary frame, a casement frame, parallel supporting means respectively connected to the upper and lower edges of the inside face of the casement frame near a centre line thereof and connected to the stationary frame near one of the upright edges thereof, each of said supporting means comprising a pair of side-by-side links spaced slightly from one another, two releasable clamps carried in spaced relation by one of said pairs of links, other links pivoted upon said frames, respectively, and engaged with said clamping means, respectively, said other links extending through the space of said one pair of links, the stationary frame having a concave groove along the other of its upright edges and the easement frame'having a corresponding round edge to fit thereinto when the casement is closed, and the casement frame hav ing a flange round its other three edges to fit a rebate provided in the stationary frame when the casement is closed.

4. For a window including a stationary frame and a casement frame, a pair of side-by-side links hinged to said frames inside the window for 4 carried in spaced relation by said links, and other links respectively hinged upon said frames inside the window and having slots to respectively coact with said clamping means, said other links extending through the space between the links of said pair of links.

5. For a window, a stationary frame, a casement frame, two spaced supporting means which are parallel to one another and are hinged at their one ends upon the stationary frame and at their other ends on the inside face of the casement frame to support the latter, means inside the window for clamping one of said supporting means with respect to the stationary frame whereby said supporting means can be held in a desired hinged position relatively to said stationary frame, and other means inside the window for clamping one of said supporting means with respect to the casement frame whereby the latter can be held in a desired hinged position relatively to said supporting means; the edge of said casement frame which is nearer to the said other ends of said supporting means than to the said one ends thereof, when said casement frame is in the closed position, being convex in cross-section, and the coactin edge of said stationary frame being correspondingly concave to receive said convex edge and provide therewith a good seal.

6. For a window, a stationary frame, a case:- ment frame, two spaced supporting means which are parallel to one another and are hinged at their one ends upon the stationary frame and at their other ends on the inside face of the casement frame to support the latter, two releasable clamping means inside the window carried in spaced re lationship by one of said supporting means, a link hinged on the stationary frame inside the window slotted to coact with one of said clamping means, and a link hinged on the casement frame inside the window and slotted to coact with the other of said clamping means; the edge of casement frame which is nearer to the said other ends of said supporting means than to the said one ends thereof, when said casement frame is in the closed position, being convex in cross-section, and the coacting edge of said stationary frame being correspondingly concave to receive said convex: edge and provide therewith a good seal.

JAMES RICHARD CORNELIUS.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 123,059 Sweetland Jan. Z3, 1872 325,333 Flagstad Sept. 1, 1885 1,308,287 Liedtke July 1, 1919 1,534,434 Wiberg Apr. 21, 1925 1,836,917 Hammer 1 Dec. 15, 1931 FOREIGN PATENTS Number Country Date 10,096 Sweden Aug. 6, 1898 700,313 France Dec. 23, 1930 

